JPH0366503A - Cutting tool for solid material - Google Patents

Cutting tool for solid material

Info

Publication number
JPH0366503A
JPH0366503A JP2106657A JP10665790A JPH0366503A JP H0366503 A JPH0366503 A JP H0366503A JP 2106657 A JP2106657 A JP 2106657A JP 10665790 A JP10665790 A JP 10665790A JP H0366503 A JPH0366503 A JP H0366503A
Authority
JP
Japan
Prior art keywords
tool
insert
recess
tool body
conical surface
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP2106657A
Other languages
Japanese (ja)
Inventor
Jan-Gunnar Hedlund
ヤン―グンナル　ヘドルンド
Bengt A Asberg
ベングト　アンデルス　オースベルグ
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sandvik AB
Original Assignee
Sandvik AB
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sandvik AB filed Critical Sandvik AB
Publication of JPH0366503A publication Critical patent/JPH0366503A/en
Pending legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21C—MINING OR QUARRYING
    • E21C35/00—Details of, or accessories for, machines for slitting or completely freeing the mineral from the seam, not provided for in groups E21C25/00 - E21C33/00, E21C37/00 or E21C39/00
    • E21C35/18—Mining picks; Holders therefor
    • E21C35/183—Mining picks; Holders therefor with inserts or layers of wear-resisting material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28D—WORKING STONE OR STONE-LIKE MATERIALS
    • B28D1/00—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor
    • B28D1/18—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by milling, e.g. channelling by means of milling tools
    • B28D1/186—Tools therefor, e.g. having exchangeable cutter bits
    • B28D1/188—Tools therefor, e.g. having exchangeable cutter bits with exchangeable cutter bits or cutter segments
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21C—MINING OR QUARRYING
    • E21C35/00—Details of, or accessories for, machines for slitting or completely freeing the mineral from the seam, not provided for in groups E21C25/00 - E21C33/00, E21C37/00 or E21C39/00
    • E21C35/18—Mining picks; Holders therefor
    • E21C35/183—Mining picks; Holders therefor with inserts or layers of wear-resisting material
    • E21C35/1831—Fixing methods or devices
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T407/00—Cutters, for shaping
    • Y10T407/22—Cutters, for shaping including holder having seat for inserted tool
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T407/00—Cutters, for shaping
    • Y10T407/26—Cutters, for shaping comprising cutting edge bonded to tool shank

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Milling Processes (AREA)
  • Drilling Tools (AREA)
  • Cutting Tools, Boring Holders, And Turrets (AREA)

Abstract

PURPOSE: To set a cutting insert in the correct position relative to a tool main body prior to soldering by causing the cavity means of the insert which comprise a plurality of buttons to be supported in recesses in the tool main body in the radial and axial directions of a tool. CONSTITUTION: A recess 12 in a tool main body 10 has a flat bottom 13 perpendicular to a tool axis 14, conical surface parts 15 which are symmetry with respect to the axis 14, and an annular surface part 16, and the conical surface 15 is formed with an annular groove 17 having a radial supporting surface 17a and an axial supporting surface 17b. A cutting insert 11 has a conical surface part 19 having a flat bottom face 18 disposed in an upper position than the bottom face 13, a hemispherical button 21 held in the groove 17. The button 21 is radially supported by the supporting surface 17a and held in the correct position prior to soldering of the insert 11, and if soldering is effected without positioning of the button 21 in the groove 17, then the insert 11 is tilted so greatly that this can be detected immediately in an inspection process.

Description

【発明の詳細な説明】 〔産業上の利用分野〕 本発明は工具本体と硬質材料、例えばセメンテッドカー
バイドの切削インサートを含んで成り、インサートが工
具本体に半田付けで確保されている、斯５る固形物材料
を切削する工具に関する。DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention comprises a tool body and a cutting insert of a hard material, for example cemented carbide, the insert being secured to the tool body by soldering. The present invention relates to a tool for cutting solid materials.

更に本発明はその工具本体に関するものである。Furthermore, the present invention relates to the tool body.

本発明に係わる切削工具が比較的硬質の固形物材料、例
えばサンドストーンを切削するとき、切削インサートは
非常に大きな力を受ける。この力はインサートと工具本
体間の半田付部に伝達される旋動モーメントを生み出す
。従って、半田付部を注意深く製作することが極めて重
要になる。When the cutting tool according to the invention cuts relatively hard solid materials, for example sandstone, the cutting insert is subjected to very high forces. This force creates a pivoting moment that is transferred to the solder joint between the insert and the tool body. Therefore, careful fabrication of the solder joints is extremely important.

インサートを工具本体に半田付けで確保するときに多分
に生じる問題は、半田合金をインサートと本体間に挿入
する前にインサートを本体に対して相対的に正しい位置
に定置出来ないことである。A problem that often arises when securing an insert to a tool body by soldering is the inability to position the insert in the correct position relative to the body before inserting the solder alloy between the insert and the body.

この問題は第１図、第２図に図示されており、その問題
は、これらの図面との関係で以下に説明される。This problem is illustrated in FIGS. 1 and 2, and will be explained below in relation to these figures.

第１図と第２図に示す従来例の切削工具は工具本体Ａと
切削インサートＢを含んで成る。この工具本体Ａは凹所
Ｃを有し、これがインサートＢを受容するように設計さ
れている。この凹所Ｃは円錐形面部りを有している。イ
ンサートＢは間隔配置の多数のボタンＦを有しており、
これらのボタンＦが凹所Ｃの円錐面部りと協働するよう
に企図されている。インサートＢは凹所Ｃの中に置かれ
、ボタンＦが円錐面部に接触する。実線で示すインサー
ト位置は理想のものである、即ちインサート位置と工具
本体Ａは共通の長手中心軸を有し、半田付部の肉厚が均
一である。しかしながら、本体に対するインサートの相
対的定置はボタンＦと円錐面部り間の摩擦に依存してい
るので、インサートＢは第１図と第２図の点線で示すよ
うにその位置が傾く事態が実に容易に生じる。このイン
サート傾斜具合はインサートＢの軸Ｈと工具本体の軸Ｇ
の間の挟角αによって表される。The conventional cutting tool shown in FIGS. 1 and 2 includes a tool body A and a cutting insert B. The cutting tool shown in FIGS. This tool body A has a recess C, which is designed to receive an insert B. This recess C has a conical surface. The insert B has a number of buttons F spaced apart;
It is envisaged that these buttons F cooperate with the conical surface of the recess C. The insert B is placed in the recess C and the button F contacts the conical surface. The insert position shown by the solid line is an ideal one, that is, the insert position and the tool body A have a common longitudinal center axis, and the thickness of the soldered portion is uniform. However, since the relative positioning of the insert with respect to the main body depends on the friction between the button F and the conical surface, the position of the insert B can easily tilt as shown by the dotted line in Figures 1 and 2. occurs in The degree of inclination of this insert is determined by the axis H of the insert B and the axis G of the tool body.
is represented by the included angle α between

この傾斜位置の状態が生じると、半田付部の肉厚が半田
付部の全面域に亘って変動する結果となる。この事態は
、半田付部が力と旋動モーメントを吸収する可能性を阻
害する。When this inclined position occurs, the thickness of the soldered portion varies over the entire area of the soldered portion. This situation inhibits the possibility of the soldering part to absorb forces and pivoting moments.

〔発明の目的〕[Purpose of the invention]

本発明の目的は、上記問題点に鑑み、半田付は前に切削
インサートを工具本体に対し正しい位置に設定すること
にある。In view of the above-mentioned problems, an object of the present invention is to set the cutting insert in the correct position with respect to the tool body before soldering.

〔発明の構成、作用効果〕[Structure, operation and effect of the invention]

第３図において、本発明に係わる切削工具は工具本体１
０と硬質材料、例えばセメンテッドカーバイドの切削イ
ンサートを含んで威る。この工具は工具ホルダに回転可
能に装置され、ホルダ自体は掘削機に取付けられる。工
具はその回転によって自己先鋭化する。工具本体１０は
、第４図に示すように、インサート１１を受容する凹所
１２を有している。本例の凹所１２は工具軸１４に直角
な平面に位置する平坦底部１３を有している。この凹所
はまた工具本体１０の外周の方へ底部１３から延長した
円錐面部１５を有している。円錐面部１５は軸１４に関
し対称である。In FIG. 3, the cutting tool according to the present invention has a tool body 1.
0 and cutting inserts of hard materials, such as cemented carbide. The tool is rotatably mounted in a tool holder, which itself is attached to the excavator. The tool self-sharpens due to its rotation. The tool body 10 has a recess 12 for receiving an insert 11, as shown in FIG. The recess 12 in this example has a flat bottom 13 lying in a plane perpendicular to the tool axis 14 . This recess also has a conical surface 15 extending from the bottom 13 towards the outer circumference of the tool body 10. The conical surface 15 is symmetrical about the axis 14.

第４図において、凹所１２は更に工具長手方向の延長体
を形成する軸１４に関して対称の環状面部１６を有して
いる。In FIG. 4, the recess 12 further has an annular surface 16 symmetrical about the axis 14 forming the longitudinal extension of the tool.

円錐面部１５には環状溝１７が形成されており、この溝
が半径方向支持面１７ａと軸方向支持面１７ｂを有して
いる。軸方向支持面１７ｂは好ましくは軸１４に対し直
角の面である。両支持面１７ａ、１７ｂは好ましくは９
０°より大きな挟角をなしている。環状溝１７は凹所１
２の底面１３の方へ幾分偏位している。An annular groove 17 is formed in the conical surface portion 15, and this groove has a radial support surface 17a and an axial support surface 17b. The axial support surface 17b is preferably a surface perpendicular to the axis 14. Both support surfaces 17a, 17b are preferably 9
It forms an included angle larger than 0°. The annular groove 17 is the recess 1
It is somewhat offset towards the bottom surface 13 of 2.

本例の切削インサート１１はインサートの装置位置にお
いて凹所の底面１３より上位に配位する平坦底面１８を
有している。The cutting insert 11 in this example has a flat bottom surface 18 located above the bottom surface 13 of the recess in the device position of the insert.

インサート１１は更に底面１８からインサートの円筒外
周面２０まで延長した円錐面部１９を有し、外周面２０
がインサートの最大外径を規定している。The insert 11 further has a conical surface portion 19 extending from the bottom surface 18 to the cylindrical outer circumferential surface 20 of the insert, the outer circumferential surface 20
defines the maximum outer diameter of the insert.

円錐面部１９は間隔配位の多数のボタン２１を具備し、
これらのボタンがインサート装置位置において溝１７に
受容されるようになっている。本例のボタン２１は半球
形である。第４図から明らかなように、ボタン２１は支
持面１７ａによって半径方向に、ボタン２１が溝１７に
装置されたときに、支持される。The conical surface portion 19 is provided with a number of buttons 21 arranged at intervals,
These buttons are adapted to be received in the grooves 17 in the insert device position. The button 21 in this example has a hemispherical shape. As is clear from FIG. 4, the button 21 is supported radially by the support surface 17a when the button 21 is installed in the groove 17.

ボタン２１と溝１７は協働してインサート１１が半田付
けが行われる前に正しい位置に確実にあるようにする。Button 21 and groove 17 cooperate to ensure that insert 11 is in the correct position before soldering is performed.

成る理由から間隔配位ボタン２１が溝１７の中に位置付
けられないで半田付けされたならば、インサート１１は
大きく傾斜してしまう結果、検査工程で直ちに見分けら
れて排除されてしまう。If, for this reason, the spacing button 21 were soldered without being positioned within the groove 17, the insert 11 would be tilted so much that it would be immediately visible and rejected during the inspection process.

本例では、半田付部は工具の軸面（軸を含む平面）上の
断面において、クサビ形状である。しかし、本発明は別
の形状の半田付部との組合せでも勿論よい。In this example, the soldering portion has a wedge shape in a cross section on the axial plane (plane including the axis) of the tool. However, the present invention may of course be used in combination with soldering portions of other shapes.

【図面の簡単な説明】[Brief explanation of drawings]

第１図は従来式工具の上部を示す部分断面平面図、第２
図は第１図の工具の部分拡大説明図、第３図は本発明に
係わる工具の上部を示す第１図に対応した部分断面平面
図、及び第４図は第３図の工具の部分拡大説明図である
。 図において、 １０・・・工具本体、　　　　１１・・・切削インサー
ト、１２・・・凹所、　　　　　　１３・・・平坦底部
、１４・・・工具軸、　　　　　１５・・・円錐面部、
１６・・・環状面部、　　　、１７・・・環状溝、１７
ａ・・・半径方向支持面、 １７ｂ・・・軸方向支持面、 １８・・・平坦底面、　　　　１９・・・円錐面部、２
０・・・円筒外周面、　　　２１・・・ボタン。 け 第２図 第１　図 １４ 第 図 第 図Figure 1 is a partially sectional plan view showing the upper part of a conventional tool;
The figure is a partially enlarged explanatory view of the tool in Fig. 1, Fig. 3 is a partially sectional plan view corresponding to Fig. 1 showing the upper part of the tool according to the present invention, and Fig. 4 is a partially enlarged explanatory view of the tool in Fig. 3. It is an explanatory diagram. In the figure, 10... Tool body, 11... Cutting insert, 12... Recess, 13... Flat bottom, 14... Tool shaft, 15... Conical surface part,
16... Annular surface portion, , 17... Annular groove, 17
a... Radial support surface, 17b... Axial support surface, 18... Flat bottom surface, 19... Conical surface portion, 2
0...Cylinder outer peripheral surface, 21...Button. Figure 2 Figure 1 Figure 14 Figure Figure 1

Claims (1)

【特許請求の範囲】 １、凹所（１２）を有する工具本体（１０）と空隙手段
（１２）を有する切削インサート（１１）を含んで成り
、インサート（１１）が凹所（１２）に受容されて半田
付けによって工具本体（１０）に確保される、斯ゝる固
形物材切削工具において、 工具本体（１０）の凹所（１２）がインサート（１１）
の空隙手段（２１）を工具の半径方向と軸方向に支持す
るための手段（１７）を具備していることを特徴とする
固形物材切削工具。 ２、凹所（１２）の支持手段が環状溝（１７）から成る
ことを特徴とする特許請求の範囲第１項に記載の工具。 ３、溝（１７）が半径方向支持面（１７ａ）と軸方向支
持面（１７ｂ）を有していることを特徴とする特許請求
の範囲第２項に記載の工具。 ４、インサート（１１）の空隙手段が複数のボタン（２
１）から成ることを特徴とする特許請求の範囲第１項〜
第３項のいづれか１項に記載の工具。 ５、ボタン（２１）が半球形であることを特徴とする特
許請求の範囲第４項に記載の工具。 ６、凹所（１２）が第１円錐面部（１５）を有し、支持
手段（１７）が第１円錐面部（１５）の中に配位してい
ることを特徴とする特許請求の範囲第１項〜第５項のい
づれか１項に記載の工具。 ７、インサート（１１）が第２円錐面部（１９）を有し
、空隙手段（２１）が第２円錐面部（１９）の中に配位
していることを特徴とする第１項〜第６項のいづれか１
項に記載の工具。 ８、固形物材切削工具の１部である工具本体（１０）で
あって、空隙手段（２１）を有する切削インサート（１
１）を受容するための凹所（１２）を有し、インサート
（１１）が半田付けにより確保されるようにした、斯ゝ
る工具本体において、 凹所（１２）がインサート（１１）の空隙手段（１７）
を工具本体（１０）の半径方向と軸方向に支持するため
の手段を具備していることを特徴とする固形物材切削用
工具本体。９、凹所（１２）の支持手段が環状溝（１７
）から成ることを特徴とする特許請求の範囲第８項に記
載の工具本体。 １０、凹所（１２）が円錐面部（１５）を有し、溝（１
７）が円錐面部（１５）の中に配位し、溝（１７）が半
径方向支持面（１７ａ）と軸方向支持面（１７ｂ）を有
することを特徴とする特許請求の範囲第９項に記載の工
具本体。[Claims] 1. A tool body (10) having a recess (12) and a cutting insert (11) having a gap means (12), the insert (11) being received in the recess (12); In such a solid material cutting tool, which is secured to the tool body (10) by soldering, the recess (12) of the tool body (10) is connected to the insert (11).
Solid material cutting tool characterized in that it comprises means (17) for supporting the gap means (21) in the radial and axial directions of the tool. 2. Tool according to claim 1, characterized in that the support means of the recess (12) consist of an annular groove (17). 3. Tool according to claim 2, characterized in that the groove (17) has a radial support surface (17a) and an axial support surface (17b). 4. The air gap means of the insert (11) allows the plurality of buttons (2
Claims 1 to 1 are characterized by comprising:
The tool described in any one of Section 3. 5. The tool according to claim 4, characterized in that the button (21) has a hemispherical shape. 6. Claim 6, characterized in that the recess (12) has a first conical surface (15), and the support means (17) are arranged in the first conical surface (15). The tool according to any one of items 1 to 5. 7. Items 1 to 6, characterized in that the insert (11) has a second conical surface part (19), and the gap means (21) are arranged in the second conical surface part (19). any one of the terms
Tools listed in section. 8. A tool body (10) which is a part of a solid material cutting tool, and a cutting insert (1) having a cavity means (21).
In such a tool body, the tool body has a recess (12) for receiving the insert (11) and the insert (11) is secured by soldering. Means (17)
A tool body for cutting solid materials, characterized in that it is provided with means for supporting the tool body (10) in the radial and axial directions. 9. The support means of the recess (12) is an annular groove (17).
) The tool body according to claim 8, characterized in that the tool body comprises: 10, the recess (12) has a conical surface portion (15), and the groove (1
7) is arranged in the conical surface part (15), and the groove (17) has a radial bearing surface (17a) and an axial bearing surface (17b). The tool itself as described.
JP2106657A 1989-04-24 1990-04-24 Cutting tool for solid material Pending JPH0366503A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE8901481-5 1989-04-24
SE8901481A SE463573B (en) 1989-04-24 1989-04-24 TOOLS AND TOOL BODY FOR CHANGING SOLID MATERIALS

Publications (1)

Publication Number Publication Date
JPH0366503A true JPH0366503A (en) 1991-03-22

Family

ID=20375769

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2106657A Pending JPH0366503A (en) 1989-04-24 1990-04-24 Cutting tool for solid material

Country Status (5)

Country Link
US (1) US5112165A (en)
EP (1) EP0395610A3 (en)
JP (1) JPH0366503A (en)
AU (1) AU633894B2 (en)
SE (1) SE463573B (en)

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Also Published As

Publication number Publication date
SE8901481D0 (en) 1989-04-24
US5112165A (en) 1992-05-12
AU5320890A (en) 1990-10-25
EP0395610A2 (en) 1990-10-31
EP0395610A3 (en) 1991-07-24
SE8901481L (en) 1990-10-25
SE463573B (en) 1990-12-10
AU633894B2 (en) 1993-02-11

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